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2 years ago

NEED HELP LOTS OF POINTS!!! Diego had $21.32 and gave $9.50 to Elena. How much did he have left?

Mathematics

1 answer:

erastovalidia [21]2 years ago

8 0

Answer:

11.18

Step by Step Explanation:

Subtract 9.5 from 21.23

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Which is equivalent to 4/9 divided by 5/7

jarptica [38.1K]

28/45 or as a decimal 0.62

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2 years ago

A poster is to have an area of 210 in2 with 1 inch margins at the bottom and sides and a 2 inch margin at the top. find the exac

slavikrds [6]

Let

x-------> the length side of the poster

y-------> the width side of the poster

we know that

Area of the poster is equal to

$210=x*y\\\\ y=\frac{210}{x}$ -------> equation $1$

Area of the printed area is equal to

$Aprinted=(x-2)*(y-3)\\ Aprinted=xy-3x-2y+6$ ----> equation $2$

substitute equation $1$ in equation $2$

$Aprinted=[210]-3x-2*[\frac{210}{x}]+6$

using a graph tool

Find the vertex of the graph

The vertex of the graph is the point that represent the value of x for the largest printed area

see the attached figure

the vertex is the point $(11.83,145)$

the largest printed area is $145 in^{2}$

$x=11.83 in$

find the value of y

$y=\frac{210}{x} \\ \\ y=\frac{210}{11.83} \\ \\ y=17.75in$

therefore

the answer is

The dimensions of the poster are $11.83 in x 17.75 in$

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2 years ago

Read 2 more answers

PLS HELP

yKpoI14uk [10]

3/2
The slope is always “m” in y=mx+b so the number in front of the x—in this case 3/2. b (3 in this case) is the y-intercept

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2 years ago

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6% of 500 is what number<br>I need it to be worked out too<br>please,<br> and thank you

Scorpion4ik [409]

Change 6% into its decimal form which is 0.06 then multiply it by 500.

500*0.06= 30

30 is the 6% of 500

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3 years ago

When planning space exploration, scientists face many

Inga [223]

Answer:

Step-by-step explanation:

Metal is stronger than plastic, but it is also much heavier.

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This statement is the key one because it gives engineers the problem they need to find the answer to make the space exploration a reality.

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1 year ago